Engineering Worksheet: Final Test

Engineering lesson 24: Final engineering test · Set 867 · 40 questions

Engineer's tip (Find the topic, use the idea): Find the topic: design process, force, machine, lever, structure, material, bridge or scale. Use that lesson’s rule — what is in the middle, load × distance = effort × distance, work = force × distance, real = drawing × scale. Write the calculation before you answer.

1. 1.📋 For a model bridge challenge, is “be under 30 cm tall” a constraint or a criterion? (a) a criterion (b) a constraint
2. 2.🛞 More or less friction: skating on ice? (a) less friction (b) more friction
3. 3.🤝 In a design team, who tracks what is used up? (a) team leader (b) tester (c) materials manager (d) recorder
4. 4.🪢 A sign weighing 600 N hangs from 6 identical vertical ropes that share the load equally. What is the tension in each rope, in newtons?
5. 5.🛞 The same block is pulled at a steady speed across four surfaces. The forces needed were: a carpet 7 N, sandpaper 10 N, a glass sheet 3 N, a wooden plank 6 N. Which surface gave the least friction? (a) a wooden plank (b) sandpaper (c) a glass sheet (d) a carpet
6. 6.🤝 How do engineers share a design with others? (a) only talking fast (b) no drawings at all (c) secret notes (d) clear labelled sketches
7. 7.🔺 Which shape keeps its shape best when its corners are pinned? (a) rectangle (b) triangle (c) square (d) hexagon
8. 8.🔧 Which tool would you use to cut a wooden plank? (a) a spanner (b) a spirit level (c) a saw (d) sandpaper
9. 9.⚙️ Which simple machine is a bottle opener? (a) wheel and axle (b) pulley (c) lever (d) inclined plane
10. 10.🔍 Which is the odd one out? (a) a bicycle (b) a coral reef (c) a satellite (d) a bridge
11. 11.True or false: “deck hangs from cables” is a suspension bridge. (a) True (b) False
12. 12.🏋️ A smooth ramp is 4 m long and rises 2 m. What effort pushes a 700 N box up it, in newtons? (ideal ramp, no friction)
13. 13.True or false: a civil engineer plans a dam. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
15. 15.🔄 Which design-process step is it to define the problem? (a) Test (b) Plan (c) Create (d) Ask
16. 16.⚖️ A seesaw balances. Arjun (400 N) sits 2 m from the pivot on one side; Zoya (? N) sits 2 m from the pivot on the other side. What is the missing weight in newtons?
17. 17.🔍 Which is the odd one out? (a) a window blind cord (b) a seesaw (c) a crowbar (d) a nutcracker
18. 18.⚖️ A seesaw balances. Ravi (360 N) sits ? m from the pivot on one side; Zoya (360 N) sits 3 m from the pivot on the other side. What is the missing distance in metres?
19. 19.True or false: a boat hull needs a waterproof material. (a) False (b) True
20. 20.True or false: flowing river water is a non-renewable energy source. (a) False (b) True
21. 21.🏋️ A machine lifts a load of 360 N when you push with 120 N. What is its mechanical advantage (MA)?
22. 22.Which of these happens in the Plan step? (a) follow the plan to build (b) find the limits (c) draw a labelled diagram (d) brainstorm many ideas
23. 23.🪝 More rope sections holding a load means … (a) more effort needed (b) no change (c) less effort needed (d) the load floats
24. 24.♻️ Is petrol a renewable or a non-renewable energy source? (a) non-renewable (b) renewable
25. 25.🔍 Which is the odd one out? (a) a river (b) a volcano (c) a ceiling fan (d) a rainbow
26. 26.💪 A cart is pulled to the right with 50 N and to the left with 45 N. Which way does the net force act? (a) to the left (b) to the right (c) no net force
27. 27.True or false: a river is made by engineers. (a) False (b) True
28. 28.⚖️ A seesaw balances. Kabir (520 N) sits 3 m from the pivot on one side; Meena (390 N) sits ? m from the pivot on the other side. What is the missing distance in metres?
29. 29.🛞 Why are tyres made with deep treads? (a) to look nice (b) to go slower (c) to save rubber (d) to grip the road
30. 30.📐 On a plan, 1 cm stands for 2 m. A real bridge is 32 m long. How long is it on the plan, in centimetres?
31. 31.🪝 Fixed or movable pulley: which one halves the effort? (a) a movable pulley (b) a fixed pulley
32. 32.💪 Which force pulls everything towards the Earth? (a) magnetism (b) gravity (c) wind (d) friction
33. 33.True or false: to clamp wood before sawing is safe. (a) False (b) True
34. 34.🔄 After testing, a design does not work well. What comes next? (a) Ask (b) Improve (c) give up (d) Imagine
35. 35.⚖️ Along a straight bar, measured from the left end, the effort is at 80 cm, the fulcrum at 30 cm and the load at 70 cm. Which class of lever is it? (a) class 1 (b) class 2 (c) class 3
36. 36.📐 On a plan, 1 cm stands for 5 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
37. 37.What does the team leader do? (a) keeps the design notes (b) keeps the team on track (c) runs the tests (d) writes down results
38. 38.True or false: a bottle cap is a lever. (a) False (b) True
39. 39.⚖️ A lever bar balances. The load is ? N at 20 cm from the fulcrum. The effort is 20 N at 60 cm from the fulcrum on the other side. What is the missing force in newtons?
40. 40.🧪 Why repeat a test three times? (a) to use more paper (b) the first is wrong (c) it looks busy (d) to get reliable results

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